/Engine/Source/Developer/IoStoreUtilities/Public/ZenStoreWriter.h
Returns an Attachment that was previously commited for the given PackageName. Returns an empty object if not found.
virtual [FCbObject](API\Runtime\Core\Serialization\FCbObject) GetOplogAttachment ( [FName](API\Runtime\Core\UObject\FName) PackageName, FUtf8StringView AttachmentKey )